According to Microsoft, "This tool is the replacement for the
Microsoft Windows NT 4.0 Compatibility Tool. You can download this tool from
the following Microsoft Web site:

The Windows 2000 Readiness Analyzer tool analyzes your computer and reports
potentially incompatible hardware devices and software programs. The tool
compares the devices and programs on your computer against a list of known
issues. Although this check also occurs during Windows 2000 Setup, you can
download and run the tool before installing Windows 2000 to help ensure your
installation will succeed."

The Readiness Analyzer File Name is Chkupgrd.exe .

Problems with Readiness Analyzer -

Readiness Analyzer may quit before it completes the check on dual boot
computers when run on Windows 95 or Windows 98.

The fix according to Microsoft KB
article Q250878 is to "Run winnt32 /checkupgradeonly from the
Windows 2000 Professional CD-ROM. Because upgrading Windows 95 or Windows 98
on a dual-boot computer is blocked by Setup, removing the other operating
system before running the tool is the preferred solution. You cannot upgrade
until the other installation process has finished."